Abstract: A seed furrow cutting knife adapted for cutting a seed furrow, fluffing the furrow sidewalls to avoid soil compaction, and for offset placement of fertilizer in the furrow is provided. The furrow cutting knife has associated side wings for fluffing sidewalls of the seed furrow and for simultaneous discharge of liquid fertilizer through a fertilizer tube into the seed furrow, but offset from the bottom of the seed furrow to avoid burning of the seed.

Abstract: This invention relates to a plow disk intended to be mounted with several others free in rotation around a shaft integral with the frame of a plow, the shaft being inclined in relation to the direction of advance of the plow so as to impart a rotation of movement to the disks.

Abstract: A wheeled plow shovel for plowing leaves or snow in a desired direction. The inventive device includes a main panel having a pair of wheels and a scraper blade extending downwardly therefrom. A handle is mounted to the main panel to permit manual manipulation of the device over a ground surface during a plowing procedure. In addition, a pair of slidably mounted wings can be extended laterally of the main body to increase a transverse width of the plowed area.

Abstract: A bucket equipped with a mixing device for use in work for improving the soil of grounds such as road grounds, an excavation machine having such a bucket, and a soil improvement method using such an excavation machine. The bucket is equipped with a mixing device disposed therein, which device can be rotated by a motor whose number of revolutions per unit time is adjustable, and has an opening formed through the bottom surface thereof. Further, the bucket includes an injection device connected to an external, solidifying agent supply source.

Abstract: A locking pin (100) for use captively retaining a tooth (14) on an adapter portion (12) of an excavating tooth and adapter assembly has a primary wedge member (110) with an integral spring (120) extending upward from the member's distal end (116). A first positive slop means (130) extends from the wedge member (110) while an opposing second positive stop means (122) extends from the integral spring (12). After insertion, the locking pin (100) prevents separation of tooth (14) from adapter portion (12) while the first and second positive stop means (130, 122) prevent accidental loss of the locking pin (100) from the assembly. To remove the locking pin, a force sufficient to separate the first positive stop means (130) from the pin (100) is exerted to drive the pin (100) from the assembly. In another embodiment, the integral spring extends from a lateral surface of the locking pin (700, 800).

Abstract: A control system for the suction line relief valve of a hydraulic dredge is disclosed. The system includes a relief valve actuator which is hydraulically operated; a hydraulic pump powered by a motor; a directional valve; an energy storage device; and hydraulic lines connecting the hydraulic pump, the accumulator, and the relief valve actuator. The accumulator converts the hydraulic pressure in the hydraulic lines into potential energy which is used to generate hydraulic pressure if the pump fails or loses power. The pressure generated is enough for the operator to move the relief valve actuator which will reposition the relief valve to a desired position after pump failure.

Abstract: A harrow comprises an elongate tool bar formed in three sections including a central section and two wing sections all of which can rotate about a longitudinal axis, The wing sections are coupled by pivot couplings which allow the wing sections to fold rearwardly in the transport position. The tool bar carries a number of harrow elements each of which is formed by a rigid frame defined by longitudinal rails and welded cross bars with the frame carrying a plurality of tine support bars. A push rod simultaneously rotates all of the tine support bars about their respective axis to vary the angle of the tine in contact with the ground. The angle of the tines of all of the harrow elements are adjusted simultaneously by a number of rocker shafts mounted on the tool bar and operated by rephasing cylinders. Each push bar of each harrow element is attached to the respective rocker shaft for actuation.

Abstract: The method of planting potted nursery plants includes providing a planting tool having a punch head corresponding to the shape of the potted plant to be planted and then inserting the punch head into the ground and displacing soil for forming a cavity having the shape of the punch head and potting soil of the potted plant. The potted plant is then inserted into the sized hole in the ground without the need of any filling soil around the plant. The planting tool includes a cross member having a handle extending from an upwardly extending arm and the punch head extending from the downwardly extending arm. A step member extends through oppositely extending horizontal arms and telescopically holds a measuring member. T shaped holders are provided on the handle for holding punch heads of different sizes and shapes.

Abstract: A pipe coupler for use in fire sprinkler systems is of generally cylindrical shape. The coupler carries locking springs to engage grooves carried on the ends of the sprinkler pipes. The coupler also carries seal rings to provide for leak proof coupling. The locking springs are carried in grooves which have sidewalls which are perpendicular to the inner surface of the coupler. The corresponding grooves on the pipes also have sidewalls which are perpendicular to the exterior surface of the pipe.

Abstract: When a prime mover (1) is driven, a controller (25) outputs an open-drive signal for bringing an opening/shutting valve (23) into an open position and, upon a control lever (68, etc.) being operated, a hydraulic fluid is supplied from an auxiliary hydraulic pump (7) through pressure reducing valves to driving sectors of directional control valves (8 to 16) for shifting them. A flow rate and a direction of flow of the hydraulic fluid from main hydraulic pumps (3, 4) are thereby adjusted so that actuators (57A, 57B, 57C, 56A, 54) can be each operated at a speed depending on the amount by which the control lever is operated. When one of the actuators (57A, 57B, 57C, 56A, 54) is to be driven when the prime mover (1) is not driven, an open command is selected in a selection command device (24), whereupon the controller (25) outputs the open-drive signal, causing the opening/shutting valve (23) to open a line interconnecting the accumulator (21) and the pressure reducing valve (17), etc.

Abstract: A lawn seeding machine is provided, which consists of a trough for holding grass seeds therein. An inverted U-shaped handle extends upwardly form the trough. A plurality of L-shaped tubular ducts extend in spaced intervals downwardly from the trough. A plurality of spiked seeding wheels are also provided, with each pivotally mounted onto an end of one L-shaped tubular duct. When the spiked seeding wheels are manually pushed along the ground, they will rotate to make holes in the ground and at the same time drop grass seeds directly into the holes received from the trough and one L-shaped tubular duct in a single pass operation.

Abstract: A straight-ahead traveling control system for a bulldozer comprising: (a) a driving mode setting device which can set an automatic blade control mode for dozing operation; (b) a yaw angle detector for detecting the yaw angle of a vehicle body in relation to a target traveling direction for the vehicle body; (c) a blade tilt angle detector for detecting the tilt angle of the blade tilting laterally in relation to the ground; and (d) a blade controller for controlling tilting of the blade based on a first blade tilting amount used for driving the vehicle body straight ahead and a second blade tilting amount used for forming a laterally horizontal earth surface after digging by the blade, the first blade tilting amount being obtained from the yaw angle of the vehicle body detected by the yaw angle detector and the second blade tilting amount being obtained from the tilt angle of the blade detected by the blade tilt angle detector, when the driving mode setting device has set the automatic blade control mode.

Abstract: A fluid-powered, laterally tiltable tool actuator. A tool has a pair of clevises, and an actuator has a generally cylindrical body with an output shaft rotatably disposed therein with an axis in general parallel alignment with a forward rotation plane through which the tool is rotatable on a backhoe arm by the operation of a rotation link. A bracket is attached to the body and has a pair of clevises for pivotal attachment to the vehicle arm and rotation link. The output shaft has a pair of shaft attachment members at each end for attaching the shaft to the corresponding tool clevises. The first pair of shaft attachment members is rigidly fixed to the shaft and attached to a first tool clevis. The second pair of shaft attachment members is pivotally attached to the shaft and pivots in a plane generally parallel to the longitudinal axis of the shaft.

Abstract: A fluid injecting system for injecting fluid into soil is disclosed, the system comprising a tank for receiving and from which is discharged the fluid, mixing apparatus in the tank for mixing the fluid, a transfer pump in fluid communication with the mixing tank, a high pressure pump, the transfer pump in fluid communication with the high pressure pump for pumping fluid from the mixing tank to the high pressure pump, sequencing pumping apparatus for providing sequential charges of fluid to a nozzle apparatus, and nozzle apparatus with at least one nozzle through which fluid is injected into the soil, the sequencing pumping apparatus in fluid communication with the nozzle apparatus. In one aspect an accumulator accumulates a charge of fluid which is supplied to the nozzle apparatus. In one aspect the sequencing pumping apparatus includes a pneumatically controlled sequencing control valve which responds to precise pressure changes to control the duration of fluid pulses.

Abstract: The invention is directed to an integral coupling arrangement for coupling a trailing cart to a transverse toolbar. The cart is provided with two draft links extending forwardly from the cart that are pivotally coupled to the toolbar. A central hitch also extends forwardly from the cart and is coupled to the toolbar by a floating link. Pushing and pulling forces are applied through the draft links only. The central hitch carries the vertical weight applied by the cart.

Abstract: A dozing system for a bulldozer, comprising an actual tractive force detector for detecting an actual tractive force of a vehicle body; a target tractive force setting device for setting a target tractive force for a vehicle body; a tractive force deviation calculator for calculating the deviation between the actual tractive force detected by the actual tractive force detector and the target tractive force set by the target tractive force setting device; and a comparison control unit for controlling a blade to be lifted or lowered such that the absolute value of the deviation is increased, when at least the absolute value of the deviation is less than a preset value and tile actual tractive force is approaching the target tractive force.

Abstract: An apparatus for gripping a pipe, which apparatus comprises an outer member having a first inclined inner surface, and an inner member having a first inclined outer surface, the arrangement being such that, in use, on rotation of said outer member relative to said inner member in one sense said first inclined inner surface co-operates with said first inclined outer surface so that said inner member moves towards a pipe to be gripped.

Abstract: The invention relates to a device (51) for inserting elongated artificial grass fibres (30) into the ground. The device (51) is provided with a frame (40), which is movable across the ground and which has at least one planting pin (25) being movable up and down in the frame (40), as well as with means for placing an artificial grass fibre (30) to be inserted into the ground under said planting pin (25), in such a manner that the fibre in question can at least partially be pressed into the ground by the planting pin (25) subsequently moving downwards. Preferably the device is provided with a plurality of planting pins (25), which are arranged in a row extending transversely to the intended direction of movement of the device, and which can jointly be moved up and down with respect to the frame by setting means.

Abstract: A scalping apparatus (10) is disclosed including a disc (32) having a circular periphery rotatably mounted upon a pivot post (46) located below and behind the lower surface of the disc (32). The axis (34) of the disc (32) is tilted at an acute angle in the order of 30.degree. from the ground surface and in a vertical plane which extends at a nonparallel angle preferably in the order of 30.degree.-40.degree. from the row (14) of sugar beets being scalped. In the most preferred form, the angular offset of the disc (32) causes the disc (32) to rotate about its axis (34) with the horizontal movement of the apparatus (10) such that rotation of the disc (32) need not be powered. The mount (38) of the disc (32) is adjustably positioned relative to the carriage of a shoe (16) which slides on the sugar beets and vertically moves relative to the ground surface. The trailing edge (22) of the shoe (16) extends at a nonparallel angle preferably in the order of 30.degree.-40.degree.

Abstract: A hub assembly for supporting a member for rotation relative to a frame. The hub assembly has a support for a member to be rotated about a first axis relative to a frame and a fixed hub part. First structure is provided for connecting the support to the fixed hub part for rotation about a first axis. Second structure is provided for connecting the fixed hub part to a frame relative to which the member is to be rotated. The second structure includes a first surface on the fixed hub part to abut a frame surface and a pin on one of the frame and the fixed hub part to project into a first bore on the other of a frame and the fixed hub part. The pin and bore are offset from the first axis. There is a third structure for drawing the first surface on a fixed hub part against a frame surface.